Grinding element for mounting in a groove

Abstract

The present invention relates to a grinding element for mounting in a recess ( 41 ) in a surface of a cylindric drum ( 42 ) and including a retainer means ( 2 ) designed with outer sidewalls that are complementary to sidewalls of the recess ( 41 ), where a squeezing force (F) on the sidewalls of the retainer means ( 2 ) arises in a situation of use by rotation of the cylindric drum ( 42 ), where the retainer means ( 2 ) includes at least one groove ( 5 ) for securing a grinding means ( 1 ), the groove ( 5 ) extending from an outwards facing side of the retainer means ( 2 ) and inwards and forming at least one elastic, pliable flap which is disposed between the said groove ( 5 ) and at least one of the outer sidewalls wherein the grinding means ( 1 ) for accommodation in the groove ( 5 ) in the retainer means ( 2 ) comprises a mounting means ( 3 ) having a socket section ( 3 b ) with a shape complementary to the groove ( 5 ) in the retainer means ( 2 ).

1. Grinding element for mounting in a recess ( 41 ) in a surface of a cylindric drum ( 42 ) comprising a retainer means ( 2 ) with outer sidewalls that are complementary to sidewalls of the recess ( 41 ), where a squeezing force (F) on the sidewalls of the retainer means ( 2 ) arises in a situation of use by rotation of the cylindric drum ( 42 ), where the retainer means ( 2 ) includes at least one groove ( 5 ) for securing a grinding means ( 1 ), the groove ( 5 ) extending from an outwards facing side of the retainer means ( 2 ) and inwards and forming at least one elastic, pliable flap in the retainer means ( 2 ) between the said groove ( 5 ) and at least one of the outer sidewalls, wherein the squeezing force (F) bends the elastic, pliable flap inwards, thereby tightening the retainer means ( 2 ) around a mounting means ( 3 ), wherein the grinding means ( 1 ) for accommodation in the groove ( 5 ) in the retainer means ( 2 ) comprises the mounting means ( 3 ) having a socket section ( 3   b ) with a shape complementary to the groove ( 5 ) in the retainer means ( 2 ). 
   
   
     2. Grinding element according to  claim 1 , characterised in that grinding means ( 1 ) is constituted by a mounting means ( 3 ) and sandpaper ( 4 ), where the mounting means ( 3 ) has a connecting section ( 3   a ) to which the sandpaper ( 4 ) is joined, and the socket section ( 3   b ) constituting the bottom part. 
   
   
     3. Grinding element according to  claim 2 , characterised in that the socket section ( 3   b ) is designed with a first approximately straight part ( 6 ) and a second part including one or more of the following parts:
 a straight second part ( 7 ) angled in relation to the first straight part; 
 a bead ( 23 ); and 
 a number of projections ( 32 ). 
 
   
   
     4. Grinding element according to  claim 2 , characterised in that the mounting means ( 3 ) is made of a flexible material. 
   
   
     5. Grinding element according to  claim 2 , characterised in that the mounting means ( 3 ) is provided with a marking. 
   
   
     6. Grinding element according to  claim 2 , characterised in that the connecting section ( 3   a ) has one specific length. 
   
   
     7. Grinding element according to  claims 2 , characterised in that the sandpaper ( 4 ) is secured to the connecting section ( 3   a ) with glue ( 10 ) or staples ( 9 ). 
   
   
     8. Grinding element according to  claim 2 , characterised in that the grinding means is constituted by a sandpaper ( 57 ) with folded edge part constituting the bottom part. 
   
   
     9. Grinding element for mounting in a recess ( 41 ) in a surface of a cylindric drum ( 42 ) comprising a retainer means ( 2 ) with outer sidewalls that are complementary to sidewalls of the recess ( 41 ), where a squeezing force (F) on the sidewalls of the retainer means ( 2 ) arises in a situation of use by rotation of the cylindric drum ( 42 ), where the retainer means ( 2 ) includes at least one groove ( 5 ) for securing a grinding means ( 1 ), the groove ( 5 ) extending from an outwards facing side of the retainer means ( 2 ) and inwards and forming at least one elastic, pliable flap which is disposed between the said groove ( 5 ) and at least one of the outer sidewalls, wherein the grinding means ( 1 ) for accommodation in the groove ( 5 ) in the retainer means ( 2 ) comprises a mounting means ( 3 ) having a socket section ( 3   b ) with a shape complementary to the groove ( 5 ) in the retainer means ( 2 ) wherein the fastening means ( 61 ) is constituted by a centre fillet ( 51 ) and a outer fillet ( 52 ) that surrounds at least a lower part of the centre fillet ( 51 ), and which is designed at one side with a longitudinal recess ( 55 ) for accommodating a complementary longitudinal part ( 54 ) of the centre fillet ( 51 ) and a side part ( 56 ) extending upwards in a cutout ( 53 ) at one side of the centre fillet ( 51 ). 
   
   
     10. Grinding element according to  claim 1 , characterised in that the retainer means ( 2 ) in the outwards facing side further includes a number of recesses which are holes which are adapted for accommodating support brushes or retainer brushes.